package com.yz.gulimall.auth.controller;

import com.alibaba.fastjson.TypeReference;
import com.yz.common.constant.AuthServerConstant;
import com.yz.common.exception.BizCodeEnume;
import com.yz.common.utils.R;
import com.yz.common.vo.MemberResVo;
import com.yz.gulimall.auth.feign.MemberFeignService;
import com.yz.gulimall.auth.feign.ThirdPartFeignService;
import com.yz.gulimall.auth.vo.UserLoginVo;
import com.yz.gulimall.auth.vo.UserRegistVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * @author yz
 * @create 2021-11-13 21:36
 */
@Controller
public class LoginController {

    //GulimallWebConfig
  /*  @GetMapping("/login.html")
    public String loginPage(){
        return "login";
    }
    @GetMapping("/reg.html")
    public String regPage(){
        return "reg";
    }*/
    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemberFeignService memberFeignService;
    @ResponseBody
    @GetMapping("/sms/sendcode")
    public R sendCode(@RequestParam("phone") String phone){

        //接口防刷

        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);
        if(!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if(System.currentTimeMillis() - l < 60000){
                return R.error(BizCodeEnume.SMS_CODE_EXCEPTION.getCode(), BizCodeEnume.SMS_CODE_EXCEPTION.getMsg());
            }
        }
        //验证码再次校验
        String code = UUID.randomUUID().toString().substring(0, 5);
        String substring = code + "_" + System.currentTimeMillis();
        //redis缓存验证码，防止同一个手机号60s内重复发送
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone, substring, 10, TimeUnit.MINUTES);
        thirdPartFeignService.sendCode(phone, code);
        return R.ok();
    }


    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if(result.hasErrors()){
            //校验出错
//            Map<String, String> errors = new HashMap<>();
      /*      result.getFieldErrors().stream().map(fieldError -> {
                String field = fieldError.getField();
                String message = fieldError.getDefaultMessage();
                errors.put(field, message);
                return errors;
            });*/
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField, FieldError::getDefaultMessage));
            redirectAttributes.addFlashAttribute("errors", errors);
            return "redirect:http://auth.gulimall.com/reg.html";
        }
        //注册，调用远程服务
        //校验验证码
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if(!StringUtils.isEmpty(s)){
            if(code.equals(s.split("_")[0])){
                //删除验证码
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                //验证码通过
                R r = memberFeignService.regist(vo);
                if(r.getCode() == 0){

                    return "redirect:http://auth.gulimall.com/login.html";
                }else {
                    Map<String, String> errors = new HashMap<>();
                    errors.put("msg", r.getData("msg", new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors", errors);
                    return "redirect:http://auth.gulimall.com/reg.html";
                }

            }else {
                Map<String, String> errors = new HashMap<>();
                errors.put("code", "验证码错误");
                redirectAttributes.addFlashAttribute("errors", errors);
                return "redirect:http://auth.gulimall.com/reg.html";
            }
        }else {
            Map<String, String> errors = new HashMap<>();
            errors.put("code", "验证码错误");
            redirectAttributes.addFlashAttribute("errors", errors);
            return "redirect:http://auth.gulimall.com/reg.html";
        }
    }

    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session){
        //远程登录
        R r = memberFeignService.login(vo);
        if(r.getCode() == 0){

            MemberResVo data = r.getData("data", new TypeReference<MemberResVo>() {
            });
            //成功放入session
            session.setAttribute(AuthServerConstant.LOGIN_USER, data);
            return "redirect:http://gulimall.com";
        }else {
            Map<String, String> errors = new HashMap<>();
            errors.put("msg", r.getData("msg", new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors", errors);
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){
        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if(attribute == null){
            //没登录
            return "login";
        }else {
            return "redirect:http://gulimall.com";
        }

    }
}
